Need help on this please, a positive answer only :)!

Mathematics

1 answer:

viva [34]3 years ago

8 0

Answer:

all statements are true

Step-by-step explanation:

for A real numbers are all numbers B is all the x values C when f(x)=5 x=-2 D when f(x)=-1 x=-6

You might be interested in

Can someone please answer this with solution please , it's scientific notation.. it's my homework since December 16

mash [69]

Answer:

1.3x10^-6

trust me it's right

5 0

3 years ago

Can yall help me please

Luda [366]

√896z^15/√225z^6

= √896z^9/√225

= √64√14(z^4)√z/15

= 8√14(z^4)√z/15

= (8z^4/15) * √14z

x = 8

7 0

3 years ago

The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. Th

ankoles [38]

We have been given that the distribution of the number of daily requests is bell-shaped and has a mean of 38 and a standard deviation of 6. We are asked to find the approximate percentage of lightbulb replacement requests numbering between 38 and 56.

First of all, we will find z-score corresponding to 38 and 56.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{38-38}{6}=\frac{0}{6}=0$

Now we will find z-score corresponding to 56.

$z=\frac{56-38}{6}=\frac{18}{6}=3$

We know that according to Empirical rule approximately 68% data lies with-in standard deviation of mean, approximately 95% data lies within 2 standard deviation of mean and approximately 99.7% data lies within 3 standard deviation of mean that is $-3\sigma\text{ to }3\sigma$ .